Please help... A gas at 55°C occupies 4.68 L. At what tem-
perature will the volume be 3.4 L, assuming
the same pressure?
Answer in units of °C.

Compare and contrast physical changes with chemical changes.

What happens to the temperature of a substance when the average kinetic energy of its particles increases?

In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as